Sherfick/Scherffig connection?

My 3rdGreatGrandfather, Benjamin Sherfick, was born 4 May 1794 in Maryland. Could there be any connection to the Scherffigs? In the 1830 census he is listed as Benjn Searvick (German Twn, Harrison Co., Ohio) and in the 1840 census he is listed as Benjamin Serfich (Runley Twn, Harrison Co., Ohio). The first spelling of the surname as Sherfick came in the 1850 census as daughter, Rachael Sherfick, was living with another family in Marietta, Washington Co., Ohio. Benjamin cannot be found in that census as his name is probably spelled yet another way. I have read that Kasper's son Jacob had two children, Daniel and Marie, that were buried with the name Sherfich. This is the main reason I'm making this request--to find some connection between Sherfick and Scherffig. Does anyone have any info? I would be very grateful for any ideas on Benjamin's ancestors as I am stuck. Cyndy mcatee03@insightbb.com